[Suggestions] Introduce a different image encoder/decoder for iOS

components/suggestions.gypi

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'targets': [
     {
       # GN version: //components/suggestions
       'target_name': 'suggestions',
       'type': 'static_library',
@@ skipping 10 matching lines @@
         'components.gyp:variations',
         'components.gyp:variations_http_provider',
       ],
       'sources': [
         'suggestions/blacklist_store.cc',
         'suggestions/blacklist_store.h',
         'suggestions/image_fetcher.h',
         'suggestions/image_fetcher_delegate.h',
         'suggestions/image_manager.cc',
         'suggestions/image_manager.h',
+        'suggestions/image_manager_utils_ios.h',
+        'suggestions/image_manager_utils_ios.mm',
         'suggestions/proto/suggestions.proto',
         'suggestions/suggestions_pref_names.cc',
         'suggestions/suggestions_pref_names.h',
         'suggestions/suggestions_service.cc',
         'suggestions/suggestions_service.h',
         'suggestions/suggestions_store.cc',
         'suggestions/suggestions_store.h',
         'suggestions/suggestions_utils.cc',
         'suggestions/suggestions_utils.h',
       ],
       'variables': {
         'proto_in_dir': 'suggestions/proto',
         'proto_out_dir': 'components/suggestions/proto',
       },
       'includes': [ '../build/protoc.gypi' ],
     },
   ],
 }